Wideband 40 dB Gain Preamplifier: 500 MHz - 18 GHz
PAM-118A — 500 MHz–18 GHz, ~40 dB gain (applications)
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Place at the receive antenna to improve SNR for above-1 GHz radiated-emissions scans in chambers or OATS.
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Overcome long coax loss and connector/switch path losses so weak DUT lines stay visible on the analyzer.
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Speed up pre-scans by enabling wider RBW/VBW and shorter dwell times without losing low-level details.
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Troubleshoot harmonics and spurs from clocks, DC-DC converters, and wireless modules (Wi-Fi/BT/cellular) in the 1–18 GHz range.
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Pair with broadband horns/log-periodics to raise field-strength signals during antenna sweeps and chamber checks.
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Stabilize sensitivity when a switch matrix, filters, or long cable runs sit between the antenna and the receiver.
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Support 3 m/10 m measurements by lifting far-field signals that would otherwise sink into the noise floor.
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Battery operation near the antenna minimizes ground-loop and power-lead coupling issues in quiet measurements.
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Use on the receive path only; it is not intended for transmit/immunity chains.
- High Gain - 40 dB (Typical)
- Flat Response ±2.5 dB
- Low Noise Figure - 3 dB max
- Pout @ 1 dB Gain Compression - +12 dBm
- Battery Powered
- Frequency: 500 MHz to 18 GHz
- Gain: 40 dB (Typical)
- Gain Flatness: ± 2.5 dB
- RF Input/output: 50 Ω Precision N- type female
- VSWR ( Input/Output): 2.2:1 (max)
- Noise Figure: <3 dB @ 25°C
- Pout @ 1dB comp: +12 dBm (min)
- Reverse isolation: 40 dB (typical)
- Battery Pack: 6 Vdc, 2Ah NimH (rechargeable)
- DC Power supply: +15Vdc, 500 mA
- Size: 7.7 x 6.5 x 3.2 inches (184 x 156 x 77 mm)
- Weight: 2.5 lbs. (1.1Kg)
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